The dashboard reads elapsed time, total cost, and tokens used
exclusively from AutoDashboardData. When auto-mode is not active
(e.g. manual /gsd next), auto is null and all three metrics show 0
— even though the status bar displays real values via /api/visualizer.
Add the same projectTotals polling pattern (30s interval via
/api/visualizer) that status-bar.tsx already uses, and wire it into
the fallback chain: projectTotals ?? auto ?? 0.
Closes#2709
When GSD_WEB_DAEMON_MODE=1 is set, scheduleShutdown() becomes a no-op.
The /api/shutdown endpoint still returns { ok: true } so the client
beacon fires without a network error, but process.exit() is never
called. This allows gsd --web to run as a persistent daemon behind a
reverse proxy without exiting on every browser tab close or refresh.
Closes#2835
